Why does the Audi A5 have a smaller engine compared to other luxury cars?

I noticed that the Audi A5 has a smaller engine compared to other luxury cars in its class. Is there a specific reason for this design choice and how does it affect the performance of the car?

The smaller engine in the Audi A5 is due to its turbocharging technology, which allows for more efficient performance without sacrificing power. It also helps with overall weight distribution and handling of the car. As for performance, the A5 may not have the same raw power as other luxury cars, but it makes up for it with its smooth and responsive driving experience.